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Finding the Fourth Proportional to 34,879.97, 48,136.32 and 18,964.08

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Solution

The fourth proportional to 34,879.97, 48,136.32 and 18,964.08 is: 26,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,879.97 : 48,136.32 = 18,964.08 : x
  2. Step 2: Convert to fraction form
    34,879.97/48,136.32 = 18,964.08/x
  3. Step 3: Cross multiply
    34,879.97x = 48,136.32 × 18,964.08
  4. Step 4: Simplify right side
    34,879.97x = 912,861,023.39
  5. Step 5: Solve for x
    x = 912,861,023.39/34,879.97
  6. Step 6: Final answer
    x = 26,171.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.